Syringe

Abstract

The invention relates to a syringe ( 1 ) having a syringe body ( 2 ) which has an interior space ( 3 ) and a tip ( 4 ) connected to the interior space ( 3 ). A plunger rod ( 5 ) is guided in the interior space ( 3 ) in a longitudinally displaceable manner. A syringe attachment filter ( 6 ) can be fixed on the tip ( 4 ), and a sealing stopper ( 7 ) can be secured on the syringe attachment filter ( 6 ).

1 . A syringe ( 1 ),
 having a syringe body ( 2 ),
 which has an interior space ( 3 ) and 
 which has a tip ( 4 ) connected to the interior space ( 3 ); 
   having a plunger rod ( 5 ) which is guided in the interior space ( 3 ) in a longitudinally displaceable manner, characterised in that   a syringe attachment filter ( 6 ) can be fixed on the tip ( 4 ), and   a sealing stopper ( 7 ) can be fixed on the syringe attachment filter ( 6 ).   
     
     
         2 . A syringe according to  claim 1 , characterised in that the syringe attachment filter ( 6 ) has a first fixing section ( 8 ) for mounting on the tip ( 4 ) and a second fixing section ( 9 ) for fastening the sealing stopper ( 7 ). 
     
     
         3 . A syringe according to  claim 1 , characterised in that the syringe attachment filter ( 6 ) and the sealing stopper ( 7 ) can be fixed by means of a respective screw connection ( 10  and  11 ). 
     
     
         4 . A syringe according to  claim 3 , characterised in that the screw connection ( 10  and  11  respectively) is formed as a Luer-lock closure. 
     
     
         5 . A syringe according to  claim 1 , characterised in that the plunger rod ( 5 ) is provided with a rubber stopper ( 13 ) at its end region ( 12 ) that is arranged in the interior space ( 3 ). 
     
     
         6 . A syringe according to  claim 5 , characterised in that the rubber stopper ( 13 ) is silicone-treated. 
     
     
         7 . A syringe according to  claim 1 , characterised in that a label ( 14 ) with mixture-ratio marks ( 15 ,  16  and  17 ) and a mark ( 18 ) for the maximum plunger stroke can be provided on the syringe body ( 2 ). 
     
     
         8 . A syringe according to  claim 1 , characterised in that it is formed as a disposable syringe. 
     
     
         9 . A syringe according to  claim 1 , characterised in that the syringe body ( 2 ) can be filled with a heavy gas ( 19 ). 
     
     
         10 . A syringe according to  claim 9 , characterised in that the heavy gas is SF 6 , C 3 F 8  or C 2 F 6 .